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https://issues.apache.org/jira/browse/MIME4J-96?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Markus Wiederkehr updated MIME4J-96:
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Attachment: DateTimeField.java
Attached a new version of DateTimeField that does not parse the Date header
until the value is actually requested.
This change alone reduces the runtime of LongMultipartReadBench #3 from 47
seconds to 35 seconds on my machine.
The other Field subclasses could be refactored in a similar fashion.
If this is acceptable I would also suggest that FieldParser gets renamed in
FieldFactory to better describe what it actually is..
> Field.parse() should defer parsing until the parsed value is actually
> requested
> -------------------------------------------------------------------------------
>
> Key: MIME4J-96
> URL: https://issues.apache.org/jira/browse/MIME4J-96
> Project: JAMES Mime4j
> Issue Type: Improvement
> Affects Versions: 0.5
> Reporter: Markus Wiederkehr
> Fix For: 0.6
>
> Attachments: DateTimeField.java
>
>
> Currently the MessageBuilder invokes Field.parse() for every header field of
> a message. Benchmark tests have shown that this has a significant impact on
> performance.
> For example, DateTimeField parses the Date header into a java.util.Date
> object regardless if this value is ever needed or not.
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